Question

a floor is 40 m long and 15 m board it's covered with the tiles each measuring 60 CM by 50 cm find the number of tiles required to cover the floor

Answer 1

so the floor is 40 m =40×100=4000cm long and 15 m=15×100=1500 cm board
if the measure of each tiles is 60cm and 50 cm then the number of tiles is

(4000×1500)/(60×50)
= 400×50
=20000 【Answer】

Answer 2

Area of floor=l×b
=40×15
=6000m^2
Area of tile=lb
=50×60
=3000cm^2
No of tiles=area of floor/area of one tile
=(6000×100)/3000
=200
200 tiles are required